Summary Of Significant Accounting Policies (Schedule Of Movement Of Warranty Reserves) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 29, 2013	Dec. 30, 2012
Accounting Policies [Abstract]
Balance at beginning of year	$ 3,995	$ 5,857
Accruals for warranties issued	4,665	5,205
Settlements made	(4,148)	(5,429)
Adjustment for discontinued operations	0	(1,668)
Foreign currency translation adjustment	9	30
Balance at end of period	$ 4,521	$ 3,995